Tomcat doesn't stop. How can I debug this?

Question

I have a Tomcat 7 running in Linux that I start via $CATALINA_HOME/bin/startup.sh and shutdown via $CATALINA_HOME/bin/shutdown.sh

Answer 1

I also had the same problem. There was a ThrottledThreadPoolExecutor in my application that wasn't getting shutdown. When I shut it down properly, tomcat would stop cleanly. In order to figure out the problem, I had to remove all the apps from my tomcat webapps directory and then add them one by one and see which one was causing the problem